Aging Down Adult to Teen

You should probably get rid of her high school diploma before you age her down, and she will probably go to school. But I do not recommend aging a sim down within the game. It could cause corruption.

There is no way to age an existing in-game sim down to teen that I know of, even with mods, other than by using CAS to force them into a younger age stage. And agreed, that is not recommended if that was method intended as it has the potential to break the sim.

Yes, the teen Sim would start going to school. I have done this a lot in my own game and the only glitch so far I have come across has to do with special outfits. Special outfits such as when children dress up using the costume chest, Halloween costumes, etc. The issue is when an aged down Sim uses their previous special outfit from their previous age that no longer is for the correct age group. This causes one of three visual glitches.

1. The textures of the Sim's whole body/attire will be that as if nude. (Though it might be possible that CC got miscategorized for the wrong age as a special outfit...I'm not sure.)
2. The special outfit causes a Sim to stretch and deform. (I have seen this with one teen aged down to a child.)
3. While using the special outfit the Sim reverts back to their original age (I have seen this from young adult to teen aged down.)

Because there is no way or safe way to delete special outfits or edit to give the Sim a correct age specified special outfit, a Sim is basically stuck like that *if* special outfits are present. Though I'm sure there's more to it as not all my Sims who had special outfits were affected at all. I would probably have to create a new save and test it out to learn all the nuances. There is a workaround I figured out in case of a glitched special outfit. However, what I haven't figured out yet was if the Sim's memory is also transferred and no I'm not referring to the memory system of Generations.
http://modthesims.info/showthread.php?p=5084242&posted=1#post5084242

The Sims that I have aged down I still play with and have been playing with for a long time...years. So that's just my personal experience, so far, of aging Sims down. Also, it's a good idea to reset the Sim after you age them down if that is the route you still want to go. However, as common knowledge as this should be by now, I'll say it anyway. Always back up and save your game so just in case if a fatal glitch happens you always have a good previous save to play from.

I once aged down one imaginary friend that was turned human that for some reason had become an aldult when its owner became a teenager.

He still had his diploma and didn’t automatically go to school, but I was able to enroll him in school by clicking on the school.

Still, when he turned into adult again, he wasn’t able to attend the high school graduation at the city hall.

Interesting. I played a whole save where I took various women from different towns, aged them down to teens, and called it "Jamie Jolina's Home for Wayward Girls." Jame Jolina was the house-mother. I didn't have any issues then. I had the teen age span something huge like 90 days, too. Once they all finally aged up to young adult I lost interest and started a new game.

"KevinL5275;c-17012004" wrote:
Interesting. I played a whole save where I took various women from different towns, aged them down to teens, and called it "Jamie Jolina's Home for Wayward Girls." Jame Jolina was the house-mother. I didn't have any issues then. I had the teen age span something huge like 90 days, too. Once they all finally aged up to young adult I lost interest and started a new game.

Did you age them down during the course of gameplay, or did you take them from their various towns into CAS, age them down, and then place them in the game? Aging them down before placing them in a game is not usually a problem, though it was for me with one particular sim, but aging them down in CAS within an ongoing game can be.

I saved them to the bin, then I added them to the household one by one in a brand new Sunset Valley game. Then I took them into CAS and aged them down to teen right away before I started playing.

I aged down a whole heap of my ready-made adult and YA sims for a 'puberty' challenge on another forum. It was a lot of fun and allowed me to explore facets of their personalities they'd never revealed before.

I have from the store, door of death and life and when my adult Sim died, the grim reaper brought him back from the grave as a baby

@rosepicker - This thread is about TS3 and is on the TS3 section of the forum. Your solution is for TS4.